Anders andersen pindstofte



A. A. PINDSTOFTE.

APPARATUS Foa |MPREGNATING LIQuIns WITH cARBoNlc Acln 0R OTHER GAsEs. APPLICATION FILED MAR. 29. I9I7.

1 3 1 4, 1 48 Patented Aug. 26, 1919.

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UNITED sTATEs PATENT oEErcE.

ANDERS ANDERSEN PINDSTOFTE, OF FREDERIKSBERG, NEAR COPENHAGEN, DENMARK.

APPARATUS FOR IMPREGNATING LIQUIDS WITH CARBON IC-ACID OR OTHER GASES.

Specication of Letters Patent.

Patented Aug. 26, 1919.

Application led March 29, 1917. Serial No. 158,482.

To all whom @'25 may concern Be it known that I, ANDERS ANDERSEN PINDsToFTE, manufacturer, citizen ot' the Kingdom of Denmark, residing at Frederiksberg Alle 62, F rederiksberg, near Copenhagen, Denmark, have invented certain new and useful Improvements in Apparatus for Impregnating Liquids with Carbonio- Acid or other Gases, of which the following is a specication.

The present invention relates to an improved apparatus i'or impregnating liquids with carbonio acid or other gases and has for its object to produce an extremely effective apparatus of the kind indicated which is comparatively simple and easy to use. The apparatus is so constructed that the air contained in the liquid supplied, is fully eX- pelled, so that the liquid discharged from the apparatus only contains the gas, with which it was to be impregnated.

The improvements in which the invention resides 'relate to the manner in which the liquid is supplied to the apparatus, 'further to the devicewhich separates the air from the liquid,`and also to the regulator controlling the supply of liquid, which is of such la construction, that it can withstand the Ahighest pressure created within the apparatus, though it may be made of entirely thin material. I y' The accompanying drawings show the improved apparatus, in which- Figure 1 is a vertical section through the apparatus,

Fig. 2 is a horizontal section on line A-A, Fig. l, shown on a larger scale, and

Fig. 3 shows a plan View of the regulating device. p

The apparatus comprisesA an impregnating chamber b, supported by legs a. This chamber b is provided at its top with a valve controlled pipe o, `through which the carbonio acid or other gas is supplied to the chamber'. The impregnated liquid is discharged from the bottom of the chamber through a valve controlled pipe (l. The tubular portion b leads into the upper end of the chamber b and is closed at its top by a cover f, provided with a valve controlled air discharge pipe g. The valve controlled liquid supply pipe 7L enters the tubular portion b through a hole in the center of the cover f within the tubular portion b', the pipe h is provided with a sliding valve i, whlch rests loosely on the upper end oi a bar j passing through the center of the chamber. lThe lower end of the bar j rests loosely on a regulator 7c arranged in the lower partof the chamber b.

The sliding valve z' is cylindrical and has a central bore m for the pipe h. This pipe is closed at its lower end, but its sides are provided with slits or openings n, which when the sliding valve is in its lowermost position (shown in Fig. 1) register with a circular recess p in the v alve. From the bottom of the recess p a number of pipes o (for instance eight) arranged in a circle around the supply pipe l1. are carried down through the valve z' and have their lower ends situated some distance below the lower end of the valve. The lower end ol the bore m opens through the bottom of the sliding valve 'by way of a duct g, through which the water seeping down between the pipe 7L and the valve escapes.

The pipes 0 discharge into a cup r supwithin the portion o. Said cup is divided by radial partitions s into'compartments,

one for each of the pipes o, and as shown in Fig. 2 the ends of the-pipes discharge over the middle lines of said compartments. Along said middle lines the bottom ol the cup 7 is provided with perfor-ations t, in which wires, wire gauze, chains or the likeu fixed to the bottom of the cup are suspended and reach down to the bottom member o of the frame 20, this member e being provided with perforations, through which the wires u or the like are drawn and then fixed to the bottom member and tightened. The frame 2O is supported at its lower end by tieb'ands 6 fixed to the dome-shaped part of the chamber b. I

The regulator 7c is anannular tank-.of

Vsheet metal, the bottom member fw of which may have its central part provided with openings. `The tank c is connected with the ends of two two armed levers 1 and 2 suspended in the dome-shaped part ot the chamber b. The other ends of. said `levers 1 and 2 are provided with counter weights 3 andl of such a size relatively to the total weight of the tank c, the bar j and the sliding valve z', that said valve i when the tank /c is empty is moved upward on the supply pipe h and closes the openings a in said pipe. The tank 7c has a funnel shaped supply opening 5, through which its interior is in Jfree, communication with the chamber Z2,- so that the same pressure always acts on` the inner and outer side of the tank, and that consequently it can be made entirely of thin material even if the pressure within the chamber b rises to thegreatest degree, as the material only needs to be of suoli a strength, that it can support the liquid contained in thetank.

The operation of the apparatus is as Jfollows:

The regulator 7c is filled or partially filled with liquid, the extent of filling depends upon the desired highest .level `ol liquid in the impregnating chamber. At vthe beginning of the operation the sliding valve is Y Y in the position shown in Fig. l.

The valve in thegas inletpipe ois opened so that the chamber b is filled with carbonic acid, whereupon the valve in the liquid supply pipeh is opened., The liquid supplied through the pipe h under la pressure greater than that of the carbonio acid flows through theopenings n into the recess p in the valve i Vand from' this recess through the pipes o into the separated `compartments of the cup a, from which compartmentsthe Copies of this 'patent may be obtained for liquid seeps down over the wires a and flows into the impregnating chamber'b'. During the passage of the liquiddown along the w wires u all the air` contained in the liquid is separated', the ,separating operation being }'oracticallyl completed by the time the liquid fhas passed one-quarter of the way down the wires. They liquid 'pseeping `down over thepwires u comesinto intimate contact with the carbonio` acid, whichat the Vsaine time causes the air separatedin theV upper part of the chamber to passout through the pipe g, thefvalve of which is opened to an extent corresponding to the quantity of air separat'- ed. During its passage through an atmosphere of pure 'carl'ionic acid, the liquid -is fully impregnated with this gas, and as the liquid continues to flow into thechamber b the level V'of the .liquid y.within Vsaid VchamberY rises. When thek level has -reached such a height that the counterbalancing action ex'- erted 'upon the tank by ythe counterweights 3 and t is overcome, the tank'will .be raised. Ofcourse the sliding valve' is moved upward and stops the supply of liquidto the apparatus. v If now impregnated liquid" is discharged from the chamber b through the pipe d the level of the liquid withinVV said chamber falls, so that the tank 7c will again assume the position shown `in Fig. 1. Oi

course the bar j and the valve t' move downV nation with a closedimpregnating chamber provided at its top with a liq'uidfsupply pipeV and at its lower part with a gas supplypip'e Vand a discharge" pipe for the impregnated liquid, of a sliding valve on said liquid sup ply pipe, ports in said' liquid supply'pipe 'controlled by said sliding valve, a plurality' of passages leading fromsaid valve, a'plurality of compartments each communicating `with one of said passages, a series of perforations in the bottom of'each compartment, wires extending from said periorationsfto theV lower part of thechamber, a regulator imniersed inthe impregnated liquid within the ychamber and connected with the fsliding valve, .and coun'terweightsV acting` on said regulator; substantially 'as described and Afor the purposes set forth.

2. In apparatus of he character described,` alower chamber, a tubular portion connected with the lower t chamber and extending above the same,means forintroducingv a gas into the lower chamber, a liquid supplypipe leading intofthe upper end oliV the tubular Y portion andwhaviiig, a lateral outlet opentsupply pipefan'dhaving av recess adaptedV to register with the lateral outlet opening, outlet devicescarriedbyI the slide ,valvesy and ing., a slide valve arranged upon the liquid leading into the recess thereof, afeup arranged within the tubular portion `vand 'near and beneath the outlet devices, an ,open

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structureV receiving the liquid from thecupl i' and adaptedv to guide the same downwardly within the tubular portion, and means ar-v ranged within the lower chamber andV oper; fated byV the change of the level of the liquid therein toV shift the slide valve.

Y In testimony whereof` I 'affix my signature in presence of two witnesses. Y

Y l ,ANDERSANDERSEN riNDsioirE..

`Vlitnes'ses: Y

MARCUS Gorman, T. ELEERK. Y

washington, D. e." Y 

